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//
// random_access_handle_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_WINDOWS_RANDOM_ACCESS_HANDLE_SERVICE_HPP
#define BOOST_ASIO_WINDOWS_RANDOM_ACCESS_HANDLE_SERVICE_HPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/push_options.hpp>
#include <boost/asio/detail/push_options.hpp>
#include <cstddef>
#include <boost/config.hpp>
#include <boost/cstdint.hpp>
#include <boost/asio/detail/pop_options.hpp>
#include <boost/asio/error.hpp>
#include <boost/asio/io_service.hpp>
#include <boost/asio/detail/service_base.hpp>
#include <boost/asio/detail/win_iocp_handle_service.hpp>
#if !defined(BOOST_ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
# if defined(BOOST_ASIO_HAS_IOCP)
# define BOOST_ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE 1
# endif // defined(BOOST_ASIO_HAS_IOCP)
#endif // !defined(BOOST_ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
#if defined(BOOST_ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE) \
|| defined(GENERATING_DOCUMENTATION)
namespace boost {
namespace asio {
namespace windows {
/// Default service implementation for a random-access handle.
class random_access_handle_service
#if defined(GENERATING_DOCUMENTATION)
: public boost::asio::io_service::service
#else
: public boost::asio::detail::service_base<random_access_handle_service>
#endif
{
public:
#if defined(GENERATING_DOCUMENTATION)
/// The unique service identifier.
static boost::asio::io_service::id id;
#endif
private:
// The type of the platform-specific implementation.
typedef detail::win_iocp_handle_service service_impl_type;
public:
/// The type of a random-access handle implementation.
#if defined(GENERATING_DOCUMENTATION)
typedef implementation_defined implementation_type;
#else
typedef service_impl_type::implementation_type implementation_type;
#endif
/// The native handle type.
#if defined(GENERATING_DOCUMENTATION)
typedef implementation_defined native_type;
#else
typedef service_impl_type::native_type native_type;
#endif
/// Construct a new random-access handle service for the specified io_service.
explicit random_access_handle_service(boost::asio::io_service& io_service)
: boost::asio::detail::service_base<
random_access_handle_service>(io_service),
service_impl_(boost::asio::use_service<service_impl_type>(io_service))
{
}
/// Destroy all user-defined handler objects owned by the service.
void shutdown_service()
{
}
/// Construct a new random-access handle implementation.
void construct(implementation_type& impl)
{
service_impl_.construct(impl);
}
/// Destroy a random-access handle implementation.
void destroy(implementation_type& impl)
{
service_impl_.destroy(impl);
}
/// Assign an existing native handle to a random-access handle.
boost::system::error_code assign(implementation_type& impl,
const native_type& native_handle, boost::system::error_code& ec)
{
return service_impl_.assign(impl, native_handle, ec);
}
/// Determine whether the handle is open.
bool is_open(const implementation_type& impl) const
{
return service_impl_.is_open(impl);
}
/// Close a random-access handle implementation.
boost::system::error_code close(implementation_type& impl,
boost::system::error_code& ec)
{
return service_impl_.close(impl, ec);
}
/// Get the native handle implementation.
native_type native(implementation_type& impl)
{
return service_impl_.native(impl);
}
/// Cancel all asynchronous operations associated with the handle.
boost::system::error_code cancel(implementation_type& impl,
boost::system::error_code& ec)
{
return service_impl_.cancel(impl, ec);
}
/// Write the given data at the specified offset.
template <typename ConstBufferSequence>
std::size_t write_some_at(implementation_type& impl, boost::uint64_t offset,
const ConstBufferSequence& buffers, boost::system::error_code& ec)
{
return service_impl_.write_some_at(impl, offset, buffers, ec);
}
/// Start an asynchronous write at the specified offset.
template <typename ConstBufferSequence, typename WriteHandler>
void async_write_some_at(implementation_type& impl, boost::uint64_t offset,
const ConstBufferSequence& buffers, WriteHandler handler)
{
service_impl_.async_write_some_at(impl, offset, buffers, handler);
}
/// Read some data from the specified offset.
template <typename MutableBufferSequence>
std::size_t read_some_at(implementation_type& impl, boost::uint64_t offset,
const MutableBufferSequence& buffers, boost::system::error_code& ec)
{
return service_impl_.read_some_at(impl, offset, buffers, ec);
}
/// Start an asynchronous read at the specified offset.
template <typename MutableBufferSequence, typename ReadHandler>
void async_read_some_at(implementation_type& impl, boost::uint64_t offset,
const MutableBufferSequence& buffers, ReadHandler handler)
{
service_impl_.async_read_some_at(impl, offset, buffers, handler);
}
private:
// The service that provides the platform-specific implementation.
service_impl_type& service_impl_;
};
} // namespace windows
} // namespace asio
} // namespace boost
#endif // defined(BOOST_ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE)
// || defined(GENERATING_DOCUMENTATION)
#include <boost/asio/detail/pop_options.hpp>
#endif // BOOST_ASIO_WINDOWS_RANDOM_ACCESS_HANDLE_SERVICE_HPP
|
Swift